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A piece of a box with a numerical lock
(قطعة من صندوق ذو قفل عددي)

Title	A piece of a box with a numerical lock
Title Original	قطعة من صندوق ذو قفل عددي
Publication Date:	Hijri 597 / AD 1200-1201
Publication Place	- David Collection, Copenhagen, Denmark
Type	Other
Language	Undetermined
Digital	Yes
Manuscript	No
Library:	Museum With No Frontiers
Library Asset ID	Inv.no. 1/1984
Record ID	object;EPM;dn;Mus21;22;ar
Library Location	David Collection, Copenhagen, Denmark
Date	Hijri 597 / AD 1200-1201
Notes	This numerical lock is the work of the astrolabe maker Muhammad Ibn Hamid Al-Astrolabi Al-Isfahani in the year 597 AH. The four dual dials can each be set in 16 positions and allow 4,294,967,296 configurations. When the right configuration is inserted it releases the inner metal plate attached to both the outer handle and the locking mechanism itself.
Sample Text	“A piece of a box with a numerical lock” within Discover Islamic Art Collections. Museum Without Borders, 2026. https://islamicart.museumwnf.org/database_item.php?id=object;EPM;dn;Mus21;22;ar

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Museum With No Frontiers

A piece of a box with a numerical lock

(قطعة من صندوق ذو قفل عددي)

Publication Date Hijri 597 / AD 1200-1201

Publication Place - David Collection, Copenhagen, Denmark

Type Other

Language Undetermined

Digital Yes

Manuscript No

Library Museum With No Frontiers

Library Asset ID Inv.no. 1/1984

Record ID object;EPM;dn;Mus21;22;ar

Library Location David Collection, Copenhagen, Denmark

Date Hijri 597 / AD 1200-1201

Notes This numerical lock is the work of the astrolabe maker Muhammad Ibn Hamid Al-Astrolabi Al-Isfahani in the year 597 AH. The four dual dials can each be set in 16 positions and allow 4,294,967,296 configurations. When the right configuration is inserted it releases the inner metal plate attached to both the outer handle and the locking mechanism itself.

Sample Text “A piece of a box with a numerical lock” within Discover Islamic Art Collections. Museum Without Borders, 2026. https://islamicart.museumwnf.org/database_item.php?id=object;EPM;dn;Mus21;22;ar